JPS6437554U - - Google Patents
Info
- Publication number
- JPS6437554U JPS6437554U JP12923887U JP12923887U JPS6437554U JP S6437554 U JPS6437554 U JP S6437554U JP 12923887 U JP12923887 U JP 12923887U JP 12923887 U JP12923887 U JP 12923887U JP S6437554 U JPS6437554 U JP S6437554U
- Authority
- JP
- Japan
- Prior art keywords
- injected
- plastic
- manhole cover
- steel
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000012774 insulation material Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第1図:本考案の断熱マンホール蓋。第2図:
従来のマンホール蓋上に形成される積雪地の落と
し穴の説明図。第3図:本考案の断熱加工したマ
ンホール蓋を用いた場合の積雪地のマンホール周
辺部の説明図。
従来のマンホール蓋上に形成される積雪地の落と
し穴の説明図。第3図:本考案の断熱加工したマ
ンホール蓋を用いた場合の積雪地のマンホール周
辺部の説明図。
Claims (1)
- 鋼製またはプラスチツク製のマンホール蓋の裏
面に断熱材をスプレー施工、注入施工または張り
付け施工した、断熱マンホール蓋。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12923887U JPS6437554U (ja) | 1987-08-27 | 1987-08-27 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12923887U JPS6437554U (ja) | 1987-08-27 | 1987-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6437554U true JPS6437554U (ja) | 1989-03-07 |
Family
ID=31383329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12923887U Pending JPS6437554U (ja) | 1987-08-27 | 1987-08-27 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6437554U (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01124848U (ja) * | 1988-02-12 | 1989-08-25 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5630262B1 (ja) * | 1974-04-26 | 1981-07-14 |
-
1987
- 1987-08-27 JP JP12923887U patent/JPS6437554U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5630262B1 (ja) * | 1974-04-26 | 1981-07-14 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01124848U (ja) * | 1988-02-12 | 1989-08-25 |